tag:blogger.com,1999:blog-87127704571973484652018-12-19T00:19:06.896-08:00JavarevisitedBlog about Java, Programming, Spring, Hibernate, Interview Questions, Books and Online Course Recommendations from Udemy, Pluarlsight etcJavin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.comBlogger1106111Javarevisitedhttps://feedburner.google.comtag:blogger.com,1999:blog-8712770457197348465.post-35039116680079563902018-12-02T19:10:00.000-08:002018-12-02T19:10:19.915-08:00How to fix invalid target release: 1.7, 1.8, 1.9, or 1.10 Error in Maven Build<div dir="ltr" style="text-align: left;" trbidi="on">If you are building your Java project using <a href="http://www.java67.com/2018/02/6-free-maven-and-jenkins-online-courses-for-java-developers.html" target="_blank">Maven</a>, maybe in Eclipse or from the command prompt by running <span style="font-family: Courier New, Courier, monospace;">mvn install</span> and your build is failing with an error like <b>&quot;invalid target release: 1.7&quot;</b> or <b>&quot;invalid target release: 1.8&quot;</b> then you have come to the right place. In this article, I&#39;ll show you the reason why this error occurs and how you can deal with these errors even with higher Java version like Java 9, 10 installed on your machine, or maybe with Java 11 in the coming month. The root cause of the problem is that you have specified a<i> higher Java version in your pom.xml</i> file for Maven compiler plugin then what Maven knows in your system, and that&#39;s why it&#39;s saying invalid target release.<br></div><a href="http://javarevisited.blogspot.com/2018/12/how-to-fix-invalid-target-release-17-18-error-in-maven.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/GVD4QLFNVLA" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2018/12/how-to-fix-invalid-target-release-17-18-error-in-maven.htmltag:blogger.com,1999:blog-8712770457197348465.post-33779224326836425132018-12-02T06:00:00.000-08:002018-12-02T05:10:53.396-08:003 Best Spring Security Online Training Courses for Java Developers<div dir="ltr" style="text-align: left;" trbidi="on">The Spring Security is one of the leading open source, security framework which allows you to implement security in Java based web applications. It provides several security features e.g. authentication, authorization, remember me out-of-the-box, which means you can directly use them without adding code or changing your class. Yes, Spring Security implements security at application level i.e. you can even secure your non-secure resource without modifying them. It is also the leading framework to secure <a href="http://javarevisited.blogspot.sg/2017/02/top-5-books-to-learn-rest-and-restful-web-services-in-java.html" target="_blank">RESTful Web Services</a>. Because of all these, the demand for Java developers with good knowledge of Spring Security is very high. They are also some of the highly paid Java developers. Many Java and Spring developer, particularly those who are involved in enterprise and Java web development are learning Spring Security.<br></div><a href="http://javarevisited.blogspot.com/2017/06/3-best-spring-security-online-training-courses-java-programmers.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/_X9Hxclo2aU" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2017/06/3-best-spring-security-online-training-courses-java-programmers.htmltag:blogger.com,1999:blog-8712770457197348465.post-72312582389110020752018-12-01T20:30:00.000-08:002018-12-01T19:54:17.227-08:00Top 5 Free Java Courses for Beginners to Learn Online - Best of Lot<div dir="ltr" style="text-align: left;" trbidi="on">We all love free resources, don&#39;t you? There was a time when I buy a lot of books when I was preparing for my engineering entrance exam but I only ended up buying books not reading them. Afte that I changed my habit to first try to read a book on loan or trying free resource and only buying when I really need. When I started my programming journey, mostly I learn from free resources e.g. free courses and books and there I developed the passion to collect free resources as well. I agree that paid resources are often better than free resources e.g. <a href="http://www.java67.com/2017/08/5-free-sql-books-for-beginners-and-experienced-pdf-download.html">books</a> and <a href="http://javarevisited.blogspot.sg/2015/06/2-websites-to-learn-coding-in-java-online-free.html" target="_blank">courses</a> but if you are just starting your journey, it&#39;s the free resource which you should try first. Once you have some background and interest, you should consider buying a proper book or courses for comprehensive learning.<br></div><a href="http://javarevisited.blogspot.com/2017/11/top-5-free-java-courses-for-beginners.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/mAJVJFLqDhk" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2017/11/top-5-free-java-courses-for-beginners.htmltag:blogger.com,1999:blog-8712770457197348465.post-33822463358526002752018-12-01T06:00:00.000-08:002018-12-01T05:29:45.528-08:00Top 5 MySQL Courses for Programmers to Learn Online - Best Of Lost<div dir="ltr" style="text-align: left;" trbidi="on">Hello guys, if you are interested in learning SQL with MySQL database and looking for some awesome resources e.g. books, tutorials and online courses then you have come to the right place. In past, I have shared some useful <a href="http://www.java67.com/2016/09/sql-5-best-books-to-learn-and-master.html" target="_blank">books</a> and <a href="https://javarevisited.blogspot.sg/2013/05/difference-between-left-and-right-outer-join-sql-mysql.html" target="_blank">tutorials</a> and in this article, I am going to talk about some of the <b>best MySQL online courses</b> from Udemy and Pluarlsight which you can join to learn SQL and MySQL from the comfort of your office or home. In last a couple of years, you might have heard the statement that <i>everybody should learn to code</i>, which is great. Coding is now like reading, writing and speaking skill and in today&#39;s Information technology-centric world it is must have and there is no better way to start coding than <a href="http://www.java67.com/2018/02/5-free-database-and-sql-query-courses-programmers.html" target="_blank">learning SQL</a>, the most popular programming language.<br></div><a href="http://javarevisited.blogspot.com/2018/05/top-5-mysql-courses-to-learn-online.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/i1abNtR3_Ss" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2018/05/top-5-mysql-courses-to-learn-online.htmltag:blogger.com,1999:blog-8712770457197348465.post-38250453025403184862018-11-30T23:00:00.000-08:002018-11-30T22:09:57.430-08:00Top 5 Websites to Learn Coding in Java Online for FREE - Best of lot<div dir="ltr" style="text-align: left;" trbidi="on">Begin an author of a Java blog, I often receive questions like how to improve my coding skills?, or how do I learn to code in Java?, or I am having difficulty solving programming problems, please help etc. This is mostly from programmers, who has just started programming or a graduate with programming degree or even some programmers with a year or two in Job. Like many other things in the world, to improve coding you need to code, code, and code - and to improve programming you need to write a program, and that&#39;s where many of these programmers fail. In 90% cases, they simply don&#39;t write enough program to develop programming logic and code sense and if without too much experience at data structures and algorithms, if they attempt problems given on sites like TopCoder, or Project Euler, they fail miserably.<br></div><a href="http://javarevisited.blogspot.com/2018/07/top-5-websites-to-learn-coding-in-java.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/GEzgO3xNHuo" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com1http://javarevisited.blogspot.com/2018/07/top-5-websites-to-learn-coding-in-java.htmltag:blogger.com,1999:blog-8712770457197348465.post-51047375998284116012018-11-30T07:00:00.000-08:002018-11-30T06:25:06.905-08:00Top 5 Free Git Courses for Programmers to Learn Online - Best of Lot<div dir="ltr" style="text-align: left;" trbidi="on">One of my goals in 2018 is to learn and master Git and I have been searching some good tutorials and courses to start with. The Internet is full of git tutorials and a simple Google search will leave you thousands of tutorials but the big question mark is where do you start? It&#39;s easy to pick a tutorial or a blog post if you have some background about what is Git, what it does? and how to use it but if you don&#39;t have much background then you need a course which can tell you all the information from the ground up. I personally like learning from a book or an online course before moving to blog posts as they were often well structured. When you search for Git courses in popular online course websites e.g. Udemy, Pluralsight or Coursera, you will find some good courses e.g. <a href="https://click.linksynergy.com/fs-bin/click?id=JVFxdTr9V80&amp;subid=0&amp;offerid=562016.1&amp;type=10&amp;tmpid=14538&amp;RD_PARM1=https%3A%2F%2Fwww.udemy.com%2Fgit-complete%2F" rel="nofollow" target="_blank">Git Complete: The Definitive Guide</a> on Udemy and <a href="https://pluralsight.pxf.io/c/1193463/424552/7490?u=https%3A%2F%2Fwww.pluralsight.com%2Fcourses%2Fgit-fundamentals" rel="nofollow" target="_blank">Git Fundamentals</a> from Pluralsight which will teach you everything about Git step by step. These are excellent resources to start with Git.<br></div><a href="http://javarevisited.blogspot.com/2018/01/5-free-git-courses-for-programmers-to-learn-online.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/-l3EBr0Ollw" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2018/01/5-free-git-courses-for-programmers-to-learn-online.htmltag:blogger.com,1999:blog-8712770457197348465.post-83088732347720977272018-11-29T21:30:00.000-08:002018-11-29T20:59:28.850-08:00The 2018 DevOps RoadMap - Your Guide to become DevOps Engineer<div dir="ltr" style="text-align: left;" trbidi="on">DevOps is really hot at the moment and most of my friends, colleagues and senior developers I know are working hard to become a DevOps engineer and project themselves as DevOps champion in their organization. While I truly understand the benefit of <a href="https://javarevisited.blogspot.com/2018/09/10-devops-courses-for-experienced-java-developers.html" target="_blank">DevOps</a>, which is directly linked to improved software development and deployment, from my limited experience I can say that it&#39;s not an easy job. It&#39;s very difficult to choose the right path in mind of so many tools and practices. Many of my readers also ask me this question is how to become a DevOps engineer, which tools should I learn? which practices should I follow? does learning Maven and Jenkins must for a DevOps guy? <b>how about Docker and Kubernetes?</b> Does infrastructure automation part of DevOps? should I learn Chef, Puppet, or Ansible are just some of those questions which keep coming to me.<br></div><a href="http://javarevisited.blogspot.com/2018/09/the-2018-devops-roadmap-your-guide-to-become-DevOps-Engineer.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/HDbUMylUws0" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2018/09/the-2018-devops-roadmap-your-guide-to-become-DevOps-Engineer.htmltag:blogger.com,1999:blog-8712770457197348465.post-47308827131403839362018-11-29T04:30:00.000-08:002018-11-29T03:33:43.775-08:00Spring Framework Certification FAQ - Frequently asked Questions Answers for Java Developers<div dir="ltr" style="text-align: left;" trbidi="on">If you are a Java developer, working in Spring framework and thinking to become a certified Spring professional but couldn&#39;t to do it in the past due to expensive mandatory training provided by Pivotal and its partners then there is a good news for you. From 10th May 2017, Pivotal made the Spring Core training optional for appearing to Spring certification exam, which means, now, it&#39;s not mandatory to take Spring training for Spring certifications (see <a href="http://javarevisited.blogspot.sg/2017/05/can-you-take-spring-certification-without-training-course.html#axzz4wCCBLM3Q" target="_blank">here</a>). Similar to Oracle&#39;s Java certifications, you can become a Pivotal certified Spring Professional by just buying the exam vouchers and scheduling your exam online using examlocal.com from anywhere in the world.<br></div><a href="http://javarevisited.blogspot.com/2017/10/spring-certification-faq-frequently-asked-questions-answers.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/Q5cc-8xx3mg" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com1http://javarevisited.blogspot.com/2017/10/spring-certification-faq-frequently-asked-questions-answers.htmltag:blogger.com,1999:blog-8712770457197348465.post-54259789938292320622018-11-28T07:00:00.000-08:002018-11-28T18:25:44.456-08:00Top 10 Programming and Coding Interview Courses for Programmers<div dir="ltr" style="text-align: left;" trbidi="on">To be honest with you, getting your first job is never easy. It is, in fact, the hardest task and you need to put your best effort to find a job in your dream company. Most of the computer science graduates dream of working for <a href="http://javarevisited.blogspot.sg/2012/01/google-interview-questions-answers-top.html">Google</a>, <a href="http://javarevisited.blogspot.sg/2015/02/50-programmer-phone-interview-questions-answers.html">Facebook</a>, <a href="http://javarevisited.blogspot.sg/2016/01/top-20-amazon-and-google-programming-interview-questions.html">Amazon</a>, <a href="http://javarevisited.blogspot.sg/2015/12/30-microsoft-interview-questions-for-software-development-engineers.html">Microsoft</a>, and Apple but they often not able to clear their rigors coding interviews. The single most important reason for failing those coding job interviews is lack of knowledge and practice, hence it becomes increasingly important that you prepare hard in advance. Unfortunately, I learned this little too late, after spoiling my chances at Microsoft and Amazon but you can learn from my experience and prepare better for your programming job interviews.<br></div><a href="http://javarevisited.blogspot.com/2018/02/10-courses-to-prepare-for-programming-job-interviews.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/mVtCrzEYwgk" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2018/02/10-courses-to-prepare-for-programming-job-interviews.htmltag:blogger.com,1999:blog-8712770457197348465.post-85117309629298972692018-11-28T06:00:00.000-08:002018-11-28T05:03:12.974-08:00Top 5 books to learn Agile and Scrum for Programmers - Best of lot, Must Read<div dir="ltr" style="text-align: left;" trbidi="on">When I started my career, it was all waterfall model. You try, fail, and then with every version you get an improved version of a software. I pretty much used to this model of software development until I was introduced to <b>Agile development methodologies</b> in my next company. I was confused about Agile as some people say its Scrum and Sprint, other ways its XP and Kanban etc. The confusion lasted for a long time because I was afraid of asking questions (afraid of being perceived as dumb and someone who wastes time on meetings) and only getting information in bits and pieces and I wasn&#39;t good at searching books at that time. From that experience, I learned that, when you have confusion and want to learn more about a new technology, nothing is better than a book or online training courses to start with.<br></div><a href="http://javarevisited.blogspot.com/2017/06/top-5-books-to-learn-agile-and-scrum-methodology.html#more"></a><div class="blogger-post-footer"><hr/>
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</div><img src="http://feeds.feedburner.com/~r/Javarevisited/~4/z7KI1oykM2c" height="1" width="1" alt=""/>Javin Paulhttps://plus.google.com/114528699166048052030noreply@blogger.com0http://javarevisited.blogspot.com/2017/06/top-5-books-to-learn-agile-and-scrum-methodology.htmltag:blogger.com,1999:blog-8712770457197348465.post-68963725641438861692018-11-27T19:00:00.000-08:002018-11-27T18:06:41.958-08:00Top 5 IntelliJ IDEA and Android Studio Courses for Java and Android Development - Best of Lot<div dir="ltr" style="text-align: left;" trbidi="on">There is no doubt that IntelliJ IDEA is THE best IDE for Java development, even though <a href="https://javarevisited.blogspot.com/2018/07/top-30-eclipse-keyboard-shortcuts-java-programming.html" target="_blank">Eclipse</a> may still be probably used by more people because it&#39;s FREE, IntelliJ IDEA is the most feature rich and complete IDE. The <b>Android Studio</b>, which is the official IDE for Android development in Java is also based upon IntelliJ IDEA, which further cement its place as the IDE Java developer should learn. The only thing which stops me and many other Java developers to moving from<b> IntelliJ IDEA</b> in the past was the lack of resources. Since Eclipse was free from the start, there are tons of resources e.g. <a href="https://javarevisited.blogspot.com/2016/03/3-books-to-learn-eclipse-ide-for-java-jee-programmers.html" target="_blank">books</a>, <a href="http://www.java67.com/2018/02/5-free-eclipse-and-junit-online-courses-java-developers.html" target="_blank">courses</a>, and <a href="http://www.java67.com/2018/01/how-to-remote-debug-java-application-in-Eclipse.html" target="_blank">tutorials </a>are available. There are also a lot of resources to learn productivity tips e.g. keyboard shortcuts and debugging techniques, but there were not many for Intelli IDEA.<br></div><a href="http://javarevisited.blogspot.com/2018/09/top-5-courses-to-learn-intellij-idea-java-and-android-development.html#more"></a><div class="blogger-post-footer"><hr/>
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